"Öberg M" - Selaus tekijän mukaan Kansanterveyslaitos KTL
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Adult smoking as a proxy for environmental tobacco smoke exposure among children - Comparing the impact of the level of information in Estonia, Finland and Latvia
Patja K; Hakala S; Prättälä R; Ojala K; Boldo E; Öberg M
Prev Med : Jun 9 (2009)